Mercurial > hg > orthanc-stone
comparison OrthancStone/Sources/Viewport/SdlViewport.cpp @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Viewport/SdlViewport.cpp@30deba7bc8e2 |
children | b4ccd4963d37 |
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1511:9dfeee74c1e6 | 1512:244ad1e4e76a |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 #include "SdlViewport.h" | |
22 | |
23 #include <OrthancException.h> | |
24 | |
25 #include <boost/make_shared.hpp> | |
26 | |
27 namespace OrthancStone | |
28 { | |
29 ICompositor& SdlViewport::SdlLock::GetCompositor() | |
30 { | |
31 if (that_.compositor_.get() == NULL) | |
32 { | |
33 // The derived class should have called "AcquireCompositor()" | |
34 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
35 } | |
36 else | |
37 { | |
38 return *that_.compositor_; | |
39 } | |
40 } | |
41 | |
42 | |
43 void SdlViewport::AcquireCompositor(ICompositor* compositor /* takes ownership */) | |
44 { | |
45 if (compositor == NULL) | |
46 { | |
47 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
48 } | |
49 | |
50 compositor_.reset(compositor); | |
51 } | |
52 | |
53 SdlViewport::SdlViewport() | |
54 { | |
55 refreshEvent_ = SDL_RegisterEvents(1); | |
56 | |
57 if (refreshEvent_ == static_cast<uint32_t>(-1)) | |
58 { | |
59 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
60 } | |
61 } | |
62 | |
63 void SdlViewport::PostConstructor() | |
64 { | |
65 controller_ = boost::make_shared<ViewportController>(shared_from_this()); | |
66 } | |
67 | |
68 void SdlViewport::SendRefreshEvent() | |
69 { | |
70 SDL_Event event; | |
71 SDL_memset(&event, 0, sizeof(event)); | |
72 event.type = refreshEvent_; | |
73 SDL_PushEvent(&event); // This function is thread-safe, and can be called from other threads safely. | |
74 } | |
75 | |
76 | |
77 SdlOpenGLViewport::SdlOpenGLViewport(const std::string& title, | |
78 unsigned int width, | |
79 unsigned int height, | |
80 bool allowDpiScaling) : | |
81 context_(title.c_str(), width, height, allowDpiScaling) | |
82 { | |
83 AcquireCompositor(new OpenGLCompositor(context_)); // (*) | |
84 } | |
85 | |
86 boost::shared_ptr<SdlOpenGLViewport> SdlOpenGLViewport::Create( | |
87 const std::string& title, | |
88 unsigned int width, | |
89 unsigned int height, | |
90 bool allowDpiScaling) | |
91 { | |
92 boost::shared_ptr<SdlOpenGLViewport> that = | |
93 boost::shared_ptr<SdlOpenGLViewport>(new SdlOpenGLViewport(title, width, height, allowDpiScaling)); | |
94 that->SdlViewport::PostConstructor(); | |
95 return that; | |
96 } | |
97 | |
98 uint32_t SdlOpenGLViewport::GetSdlWindowId() | |
99 { | |
100 SdlWindow& sdlWindowWrapper = context_.GetWindow(); | |
101 SDL_Window* sdlWindow = sdlWindowWrapper.GetObject(); | |
102 Uint32 sdlWindowId = SDL_GetWindowID(sdlWindow); | |
103 return sdlWindowId; | |
104 } | |
105 | |
106 SdlOpenGLViewport::~SdlOpenGLViewport() | |
107 { | |
108 // Make sure that the "OpenGLCompositor" is destroyed BEFORE the | |
109 // "OpenGLContext" it references (*) | |
110 ClearCompositor(); | |
111 } | |
112 | |
113 | |
114 void SdlOpenGLViewport::Paint() | |
115 { | |
116 SdlLock lock(*this); | |
117 lock.GetCompositor().Refresh(lock.GetController().GetScene()); | |
118 } | |
119 | |
120 | |
121 void SdlOpenGLViewport::UpdateSize(unsigned int width, unsigned int height) | |
122 { | |
123 // nothing to do in OpenGL, the OpenGLCompositor::UpdateSize will be called automatically | |
124 SdlLock lock(*this); | |
125 lock.Invalidate(); | |
126 } | |
127 | |
128 | |
129 void SdlOpenGLViewport::ToggleMaximize() | |
130 { | |
131 // No need to call "Invalidate()" here, as "UpdateSize()" will | |
132 // be invoked after event "SDL_WINDOWEVENT_SIZE_CHANGED" | |
133 SdlLock lock(*this); | |
134 context_.ToggleMaximize(); | |
135 } | |
136 | |
137 | |
138 | |
139 SdlCairoViewport::SdlCairoViewport(const char* title, | |
140 unsigned int width, | |
141 unsigned int height, | |
142 bool allowDpiScaling) : | |
143 window_(title, width, height, false /* enable OpenGL */, allowDpiScaling), | |
144 sdlSurface_(NULL) | |
145 { | |
146 AcquireCompositor(new CairoCompositor(width, height)); | |
147 } | |
148 | |
149 SdlCairoViewport::~SdlCairoViewport() | |
150 { | |
151 if (sdlSurface_) | |
152 { | |
153 SDL_FreeSurface(sdlSurface_); | |
154 } | |
155 } | |
156 | |
157 uint32_t SdlCairoViewport::GetSdlWindowId() | |
158 { | |
159 SDL_Window* sdlWindow = window_.GetObject(); | |
160 Uint32 sdlWindowId = SDL_GetWindowID(sdlWindow); | |
161 return sdlWindowId; | |
162 } | |
163 | |
164 void SdlCairoViewport::Paint() | |
165 { | |
166 SdlLock lock(*this); | |
167 | |
168 lock.GetCompositor().Refresh(lock.GetController().GetScene()); | |
169 CreateSdlSurfaceFromCompositor(dynamic_cast<CairoCompositor&>(lock.GetCompositor())); | |
170 | |
171 if (sdlSurface_ != NULL) | |
172 { | |
173 window_.Render(sdlSurface_); | |
174 } | |
175 } | |
176 | |
177 | |
178 void SdlCairoViewport::UpdateSize(unsigned int width, | |
179 unsigned int height) | |
180 { | |
181 SdlLock lock(*this); | |
182 dynamic_cast<CairoCompositor&>(lock.GetCompositor()).UpdateSize(width, height); | |
183 lock.Invalidate(); | |
184 } | |
185 | |
186 | |
187 void SdlCairoViewport::ToggleMaximize() | |
188 { | |
189 // No need to call "Invalidate()" here, as "UpdateSize()" will | |
190 // be invoked after event "SDL_WINDOWEVENT_SIZE_CHANGED" | |
191 SdlLock lock(*this); | |
192 window_.ToggleMaximize(); | |
193 } | |
194 | |
195 | |
196 // Assumes that the mutex is locked | |
197 void SdlCairoViewport::CreateSdlSurfaceFromCompositor(CairoCompositor& compositor) | |
198 { | |
199 static const uint32_t rmask = 0x00ff0000; | |
200 static const uint32_t gmask = 0x0000ff00; | |
201 static const uint32_t bmask = 0x000000ff; | |
202 | |
203 const unsigned int width = compositor.GetCanvas().GetWidth(); | |
204 const unsigned int height = compositor.GetCanvas().GetHeight(); | |
205 | |
206 if (sdlSurface_ != NULL) | |
207 { | |
208 if (sdlSurface_->pixels == compositor.GetCanvas().GetBuffer() && | |
209 sdlSurface_->w == static_cast<int>(width) && | |
210 sdlSurface_->h == static_cast<int>(height) && | |
211 sdlSurface_->pitch == static_cast<int>(compositor.GetCanvas().GetPitch())) | |
212 { | |
213 // The image from the compositor has not changed, no need to update the surface | |
214 return; | |
215 } | |
216 else | |
217 { | |
218 SDL_FreeSurface(sdlSurface_); | |
219 } | |
220 } | |
221 | |
222 sdlSurface_ = SDL_CreateRGBSurfaceFrom((void*)(compositor.GetCanvas().GetBuffer()), width, height, 32, | |
223 compositor.GetCanvas().GetPitch(), rmask, gmask, bmask, 0); | |
224 if (!sdlSurface_) | |
225 { | |
226 LOG(ERROR) << "Cannot create a SDL surface from a Cairo surface"; | |
227 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
228 } | |
229 } | |
230 } |